Friedman test is used to assess whether there are any statistically significant differences between the distributions of three ormore paired groups. It's recommended when the normality assumptions of the one-way repeated measures ANOVA test isnot met or when the dependent variable is measured on an ordinal scale. Using R for data analysis, we ll use the self esteemscore dataset measured over three time points. The data is available in the datarium package. At 0.05 level of significance,test whether the self esteem score was statistically significantly different at the different time points during the diet. R codeand its output is given below.R code and its outputdata ("selfesteen", package = "datarium")head (selfesteem, 3)# + A tibble: 3 x 4id t1t2t31 4.012 2.563 3.245.187.116.319.786.914.44selfesteem <- selfesteem >gather (key = "time", value = "score", t1, t2, t3) $>8convert_as_factor (id, time)head (selfesteem, 3)+# + A tibble: 3 x 3idtime score** 11ti4.01* 2 24 33t1tl2.563.24selfesteem >group_by (time) %>*get_summary_atats(score, type = "common")# # A tibble: 3 x 11timevariableminmax medianigr meansdcinse # 1 t1# 2 t2+# 3 t310102.053.914.003.21 0.571 3.14 0.552 0.174 0.3954.60 0.893corescore6.914.93 0.863 0.273 0.617Score10 6.319.787.46 1.747.64 1.140.361 0.817res.fried <- selfesteem >% friedman_test (score - time lid)res.fried+# + A tibble: 1 x 6p method 2 0.000112 Friedman testn statisticdf-y.4* # 1 score 1018.2Which of the following is the correct of the result of the data analysis using R?I. The self esteem score was not statistically significantly different at the different time points during the diet.II. The self esteem score was statistically significantly different at the same time points during the diet.III. The self esteem score was statistically significantly different at the different time points during the diet.a I onlyb. II onlyc. Both I and IId. III only

Given information: The output of Friedman test is given.

Answered: Friedman test is used to assess whether…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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what is the characteristis of the normal curve and what human trait or behavior is distributed normally?
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